Concaved journal-box and dust-guard.



7 PATENTED JUNE 5, 1906. J. S. PATTEN. GONGAVEDJOURNAL BOX AND DUSTGUARD.

APPLICATION FILED AUG 17. 1904.

2 SHBETSSHEBT 1 Silli wumtoz jncmzw 11.0mm co wovo-utnbnmmzus msmorox nc PATENTED JUNE 5, 1906 J. S. PATTBN.

GONGAVED JOURNAL BOX AND DUST GUARD.

APPLICATION FILED AUG 17. 1904.

wwne/weo W flue {UNITED STATES PATENT orrrson JAMES S. PATTEN, OFBALTIMORE,

MARYLAND, ASSIGNOR, BY DIRECT AND MESNE ASSIGNMENTS, TO BALTIMOREJOURNAL BOX COMPANY, OF BALTIMORE, MARYLAND, A CORPORATION OF MARYLAND.

Specification of Letters Patent.

Patented June 5, 1906.

Application filed August 1'7 1904. Serial No. 221 040.

To aZZ whom it may concern.-

Be it known that I, JAMEs S. PATTEN, a citizen of the United States,residing at Baltimore, in the State of Maryland, have invented certainnew and useful Improvements in Concaved J ournal-Boxes and Dust-Guardsand I do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

This invention relates to railway j ournalboxes and dust uards therefor,the object of the invention being to provide an outside guard for theinner end of the journal-box, and,further, to provide a constructionwherein the sha e will be such that the guardplate will e supported, atleast in part, by the box. It is common to support the dustguard plateupon the axle, but constant rotation of the axle in the plate wears awaythe upper face of the opening through which the axle passes and acorresponding space is left between the lower portion of the face of theopening and the bottom of the axle for ingress of dust. The wear is ofcourse proportional to the friction and the friction is proportional tothe weight of the plate upon the axle. It is therefore evident that ifthe weight of the guard-plate is supported partly by thebox the wear ofthe plate on the axle will be decreased and the life of the plate willbe correspondingly len thened.

Afurther object of t e invention is to provide a simple and eflicientmeans for holding the guard-plate with a dust-proof joint close againstthe outer face of the inner end of the j ournal-b ox while permitting ofmovement of the guard over the face as it is shifted by movement of thejournal-box with respect to the wheel-axle and to provide means whichwill permit of ready application and removal of the guard-plate.

Other objects and advantages of the invention will be understood fromthe following description.

This structure in its broad aspect is the converse of that forming thesubject-matter of my application for United States Letters Patent,Serial No. 221,041.

In the drawings forming a portion of this specification and in whichlike numerals of reference indicate similar parts in the several views,Figure 1 is a perspective view showing the inner end portion of ajournal-box and a dust-guard plate embodying the present invention. Fig.2 is a perspective view of the guard-plate. Fig. 3 is a section on line3 3 of Fig. 1. Fig. A is a section on line 4 4 of Fig. 1. Fig. 5 is adetail sectional view showing a modification.

Referring now to the drawings, there is shown a portion of a journal-box 10, the inner end 11 of which is reentrant, so that the innerend face 12 is concaved, the curvature of the wall 11 being only in avertical plane.

It will be noted that the inward curvature of the end wall 11 of the journal-box results in the formation of a tapered lower cornerpocket, theend wall hanging over the pocket and this serving in a measure toprevent the waste in the box from rising to the opening 22. This removesin great part the danger of the Waste being crowded out through theopening.

At the side of the box 10 are formed integral guide-flanges which extendfirst outwardly at right angles to the side faces of the box, as shownat 13, then are curved backwardly, as shown at 14, from which pointsthey extend toward the box and parallel with the portions 13, as shownat 15, and then are curved outwardly and then inwardly to form thesemicylindrical portions 16.

In connection with the journal-box there is employed a dust-guard plate17, which is curved or bent to correspond to the face 12, against whichit is adapted to fit snugly, the lateral ends of the plates 17 beingextended forwardly at right angles to the plate, as shown at 18, andthen outwardly, as shown at 19, parallel with the central or bodyportion 17 of the plate. The proportions of the plate 17 and its wings19 are such that the plate may be lowered into place with its central orbody portion against the face 12, its portions 18 in close relation tothe side faces of the box 10 and its wings 19 between the portions 13and the portions 15 and 16 of the guides. In the center of the plate 17is an opening 20 to receive the journal, which fits the opening snuglyand rotatably, there being an annular flange 21 formed upon the outerface of the plate, so as to thicken the wall of the opening 20 and givea greater bearing-surface for the journal. The opening 20 in the plateregisters with the opening 22 in the end of the journal-box.

To hold the plate 17 close against the concaved face of the journal-box,a frusto-conical wedge 24 is provided at each side of the box and isengaged with the corresponding holder 16 with its minor end downwardly,the wedge bearing against the inner face of the holder and against thelug 25, formed upon the wing 19 at that side of the plate 17. The lugs25 are midway of the upper and lower edges of the plate, and the wedgesin pressing thereagainst hold the plate close" against the end of thebox, while permitting slight movement of the plate as the journal movesin the opening in the end of the box.

By concaving the inner end of the journalbox the lower half of the outerend face of the box acts to support in a measure the plate 17, whileincidentally the inward slant of the lower portion of the wall 11 servesto prevent rising of the waste, so that it does not have the usualtendency to pass out through the opening in the end of the box and tofind its way between the guard-plate and the journal after theguard-plate has become slightly worn.

Instead of forming the guard-plate to make direct contact with theconcaved face of the journal-box the plate may be provided with a flange26 at its edge which will directly engage the end face of the box and bywearing away will present a ground joint, so that ingress of dust willbe effectually prevented. The flanged plate is shown in Fig. 5 of thedrawings.

What is claimed is 1. The combination with a journal-box having aconcaved inner end face provided with an opening to receive a journal,of a dust-guard plate curved to correspond to said face and disposedthereagainst, said plate having an opening registering with that of thebox and means for automatically shifting the plate in the direction ofthe box to compensate for wear of the contacting faces of the plate andbox.

2. The combination with a journal-box having a rentrant inner end walland a corresponding concaved inner end face through which is formed anopening to receive a ournal, of a dust-guard plate having a portionthereof fitted to said concaved face and in contact therewithcontinuously about said opening, said plate having an openingregistering with that of the box to receive the journal, and means forautomatically shifting the plate in the direction of the box tocompensate for wear of the contacting faces of the plate and box.

. 3. The combination with a journal-box having an end opening to receivea journal, of guides carried by the box, a dust-guard plate disposedagainst the end of the box and having an opening registering with thatof the box, wedges engaged in the guides and against portions of theplate in position to hold the plate against movement from the boxlongitudinally of the axis of its opening and means cooperating with thewedges for automatically shifting the plate in the direction of the boxto compensate for wear of the contacting faces of the plate and box.

- 4. The combination with a journal-box having an end opening to receivea journal, of a dust-guard plate disposed against the end of the box,and having an opening registering with that of the box, and means forholding the plate against the box and with which means the plate is inrocking contact.

5. The combination with a journal-box having an end opening to receive ajournal, of a dust-guard plate disposed against the end of a box andhaving an opening registering with that of the box and having aforwardlydirected lug projecting at each side of said opening and meansbearing against the rear ends of said lugs for holding the plate againstthe box and with which means, said lugs are in rocking contact.

In testimony whereof I affix my signature in presence of two witnesses.

JAMES S. PATTEN. Witnesses:

J os. H. BLAOKWOOD, F. C. J ONES.

